A323454 - cp's OEIS frontend

A323454 Minimal number of steps to reach n from 1 using "Choix de Bruxelles", version 2 (cf. A323460), or -1 if n cannot be reached.

n	a(n)
1	0
2	1
3	11
4	2
5	-1
6	10
7	9
8	3
9	9
10	-1
11	10
12	9
13	5
14	8
15	-1
16	4
17	7
18	8
19	8
20	-1
21	10
22	9
23	6
24	8
25	-1
26	5
27	8
28	7
29	9
30	-1
31	6
32	5
33	10
34	6
35	-1
36	9
37	9
38	7
39	9
40	-1
41	11
42	10
43	7
44	9
45	-1
46	6
47	9
48	8
49	10
50	-1
51	7
52	6
53	7
54	7
55	-1
56	6
57	7
58	8
59	8
60	-1
61	7
62	6
63	11
64	6
65	-1
66	10
67	10
68	7
69	10
70	-1
71	8
72	8
73	9
74	8
75	-1
76	8
77	11
78	8

[0, 1, 11, 2, -1, 10, 9, 3, 9, -1, 10, 9, 5, 8, -1, 4, 7, 8, 8, -1, 10, 9, 6, 8, -1, 5, 8, 7, 9, -1, 6, 5, 10, 6, -1, 9, 9, 7, 9, -1, 11, 10, 7, 9, -1, 6, 9, 8, 10, -1, 7, 6, 7, 7, -1, 6, 7, 8, 8, -1, 7, 6, 11, 6, -1, 10, 10, 7, 10, -1, 8, 8, 9, 8, -1, 8, 11, 8]

cp's OEIS Frontend

A323454 Minimal number of steps to reach n from 1 using "Choix de Bruxelles", version 2 (cf. A323460), or -1 if n cannot be reached.

Table of values

List of values

n	a(n)
1	0
2	1
3	11
4	2
5	-1
6	10
7	9
8	3
9	9
10	-1
11	10
12	9
13	5
14	8
15	-1
16	4
17	7
18	8
19	8
20	-1
21	10
22	9
23	6
24	8
25	-1
26	5
27	8
28	7
29	9
30	-1
31	6
32	5
33	10
34	6
35	-1
36	9
37	9
38	7
39	9
40	-1
41	11
42	10
43	7
44	9
45	-1
46	6
47	9
48	8
49	10
50	-1
51	7
52	6
53	7
54	7
55	-1
56	6
57	7
58	8
59	8
60	-1
61	7
62	6
63	11
64	6
65	-1
66	10
67	10
68	7
69	10
70	-1
71	8
72	8
73	9
74	8
75	-1
76	8
77	11
78	8

n	a(n)
1	0
2	1
3	11
4	2
5	-1
6	10
7	9
8	3
9	9
10	-1
11	10
12	9
13	5
14	8
15	-1
16	4
17	7
18	8
19	8
20	-1
21	10
22	9
23	6
24	8
25	-1
26	5
27	8
28	7
29	9
30	-1
31	6
32	5
33	10
34	6
35	-1
36	9
37	9
38	7
39	9
40	-1
41	11
42	10
43	7
44	9
45	-1
46	6
47	9
48	8
49	10
50	-1
51	7
52	6
53	7
54	7
55	-1
56	6
57	7
58	8
59	8
60	-1
61	7
62	6
63	11
64	6
65	-1
66	10
67	10
68	7
69	10
70	-1
71	8
72	8
73	9
74	8
75	-1
76	8
77	11
78	8

n	a(n)
1	0
2	1
3	11
4	2
5	-1
6	10
7	9
8	3
9	9
10	-1
11	10
12	9
13	5
14	8
15	-1
16	4
17	7
18	8
19	8
20	-1
21	10
22	9
23	6
24	8
25	-1
26	5
27	8
28	7
29	9
30	-1
31	6
32	5
33	10
34	6
35	-1
36	9
37	9
38	7
39	9
40	-1
41	11
42	10
43	7
44	9
45	-1
46	6
47	9
48	8
49	10
50	-1
51	7
52	6
53	7
54	7
55	-1
56	6
57	7
58	8
59	8
60	-1
61	7
62	6
63	11
64	6
65	-1
66	10
67	10
68	7
69	10
70	-1
71	8
72	8
73	9
74	8
75	-1
76	8
77	11
78	8